I think we should be prepared, given environmental and political change for large-scale migration. If sea levels rise and 200 million people in Bangladesh and 300 million people in Indonesia need to move, and the entire Chinese seaboard, New York City - that's going to be huge.

I think there's really strong social stratification in South Asia.

A beard is something that is almost like a mirror to the viewer. When someone sees you wearing a beard, they're seeing something in their own imagination because it's still me whether I'm bearded or not.

For me, writing a novel is like solving a puzzle. But I don't intend my novels as puzzles. I intend them as invitations to dance.

But when you read a book, what you see are black squiggles on pulped wood or, increasingly, dark pixels on a pale screen. To transform these icons into characters and events, you must imagine. And when you imagine, you create.

We keep the negative stuff because it's the negative stuff that's going to, you know, potentially kill us. That fin in the water - maybe it is a shark. That yellow thing behind the tree - maybe it is a lion. You need to be scared.

My mother has been to Mecca to perform her hajj; my dad hasn't. I come from a very liberal family, so even the people who are outwardly religious tend to subscribe to gender equality, the importance of open-mindedness, all that stuff. My family is generally nonprescriptive.